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Zion, IL Weather Forecast
Zion, IL Weather Forecast Dated: 258 PM Tue Sep 15 2026
Expect a cool pattern with more clouds than sun and frequent chances of rain over the coming period. generally humid conditions and no major pressure swings will dominate.
Tuesday, September 15, 2026
Mid-Morning
66°F 19°C
Light Showers
Mid-Afternoon
70°F 21°C
Light Fog
Early-Evening
72°F 22°C
Overcast
Pleasant near 70°F 21°C, early showers breaking for a drier afternoon, with steady humidity and steady pressure. Winds easing from SW 16 mph 26 km/h to NNW 7 mph 11 km/h.
Wednesday, September 16, 2026
Mid-Morning
67°F 19°C
Overcast
Mid-Afternoon
67°F 19°C
Overcast
Early-Evening
66°F 19°C
Light Showers
Mildly cool near 67°F 19°C, mainly dry until evening showers arrive, with steady humidity and steady pressure. Winds switching from the NE to the ENE at 6 mph 10 km/h.
Thursday, September 17, 2026
Mid-Morning
66°F 19°C
Overcast
Mid-Afternoon
69°F 21°C
Partly Cloudy
Early-Evening
68°F 20°C
Overcast
Enjoyable around 69°F 21°C, overcast in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure. Winds moving from the N to the NE at 9 mph 14 km/h.
Friday, September 18, 2026
Mid-Morning
64°F 18°C
Light Showers
Mid-Afternoon
65°F 18°C
Light Showers
Early-Evening
67°F 20°C
Scattered Showers
Cool with a high near 65°F 18°C, periods of heavy rain and gusty conditions, with steady humidity and barometric pressure falling. Winds swinging from the ENE to the ESE at 16 mph 26 km/h. Gusts up to 26 mph 41 km/h.
Saturday, September 19, 2026
Mid-Morning
68°F 20°C
Fog
Mid-Afternoon
74°F 23°C
Partly Cloudy
Early-Evening
71°F 22°C
Light Showers
Mild with a high of 74°F 23°C, mainly dry until evening showers arrive, with steady humidity and steady pressure. Winds shifting from the SE to the N at 11 mph 18 km/h.
Sunday, September 20, 2026
Mid-Morning
63°F 17°C
Heavy Rain Showers
Mid-Afternoon
62°F 17°C
Light Showers
Early-Evening
62°F 17°C
Light Showers
Mildly cool near 62°F 17°C, on-and-off showers throughout the day, with steady humidity and steady pressure. Winds turning from the NE to the ENE at 16 mph 25 km/h. Gusts up to 20 mph 31 km/h.
Monday, September 21, 2026
Mid-Morning
65°F 18°C
Scattered Showers
Mid-Afternoon
66°F 19°C
Light Showers
Early-Evening
66°F 19°C
Scattered Showers
Comfortable at 66°F 19°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds switching from the SE to the SW at 7 mph 11 km/h.
Tuesday, September 22, 2026
Mid-Morning
59°F 15°C
Scattered Showers
Mid-Afternoon
65°F 19°C
Cloudy
Early-Evening
63°F 17°C
Cloudy
Cool with a high near 65°F 19°C, scattered downpours possible, with steady humidity and steady pressure. Winds moving from the W to the WNW at 8 mph 13 km/h.
Wednesday, September 23, 2026
Mid-Morning
62°F 17°C
Sunny
Mid-Afternoon
68°F 20°C
Overcast
Early-Evening
65°F 19°C
Light Showers
Mild temperatures up to 68°F 20°C, dry most of the day, with showers developing late, with steady humidity and barometric pressure falling. Winds swinging from the SSW to the WNW at 14 mph 22 km/h. Gusts up to 26 mph 42 km/h.
Thursday, September 24, 2026
Mid-Morning
54°F 12°C
Sunny
Mid-Afternoon
61°F 16°C
Cloudy
Early-Evening
56°F 14°C
Scattered Showers
Mildly cool near 61°F 16°C, periods of heavy rain and gusty conditions, with increasing humidity and steady pressure. Winds shifting from the WNW to the NW at 15 mph 24 km/h. Gusts up to 25 mph 40 km/h.
Friday, September 25, 2026
Mid-Morning
53°F 11°C
Sunny
Mid-Afternoon
59°F 15°C
Sunny
Early-Evening
59°F 15°C
Sunny
Comfortable at 59°F 15°C, sunny throughout the day, with steady humidity and steady pressure. Winds turning from the NNW to the S at 9 mph 15 km/h.
Saturday, September 26, 2026
Mid-Morning
62°F 16°C
Sunny
Mid-Afternoon
72°F 22°C
Sunny
Early-Evening
71°F 22°C
Sunny
Comfortable with temperatures reaching 72°F 22°C, sunny throughout the day, with steady humidity and steady pressure. Winds SSW at 10 mph 17 km/h.
Sunday, September 27, 2026
Mid-Morning
67°F 19°C
Overcast
Mid-Afternoon
76°F 25°C
Overcast
Early-Evening
76°F 24°C
Overcast
Enjoyable around 76°F 25°C, overcast throughout the day, with steady humidity and barometric pressure falling. Winds out of the S at 13 mph 21 km/h. Gusts up to 31 mph 51 km/h.
Monday, September 28, 2026
Mid-Morning
73°F 23°C
Overcast
Mid-Afternoon
71°F 22°C
Overcast
Early-Evening
66°F 19°C
Overcast
Mild temperatures up to 71°F 22°C, overcast throughout the day, with increasing humidity and barometric pressure rising. Winds swinging from the SW to the NW at 11 mph 18 km/h. Gusts up to 21 mph 34 km/h.
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